Green collar jobs are at the heart of President Obama's economic program. Some laid-off blue-collar workers are starting to wonder what those green collar jobs will look like.

"Forty Years After The Population Bomb Ignited Controversy, Paul Ehrlich Continues to Stir Debate"

"The world's seas are filled with too much garbage and too few fish with flimsy plastic bags and government subsidies bearing much of the blame, activists and trade officials said Monday on the first U.N. World Oceans Day."

Jon Wellinghoff, the new chairman of FERC, will have enormous influence in a time when the United States' energy future is at a crossroads.

"The House global warming bill slated for floor debate this summer is projected to trim the federal budget deficit over the next decade, the Congressional Budget Office states ...."

"Activists restore blighted San Francisco Bay Area creeks -- and impoverished communities."

"Even today the Great Lakes landscape is bouncing back from the glaciers that retreated 10,000 years ago. A key question researchers recently sought to answer is whether that has anything to do with fluctuating lake levels."

The town of Lexington, Mass., has a problem with beavers. A big problem.